Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.2809z&link_type=abstract
American Astronomical Society, HEAD meeting #10, #28.09
Astronomy and Astrophysics
Astronomy
Scientific paper
The TIGRE (Tracking and Imaging Gamma-Ray Experiment) prototype balloon payload was successfully launched from Ft. Sumner, NM, on June 2, 2007. This was the first flight for this instrument. TIGRE is sensitive to 1-10 MeV gamma rays as a Compton telescope with recoil electron tracking and to 10-100 MeV gamma rays as a pair telescope. During an almost 20 hour long balloon flight approximately 2 million events (100 GB) were recorded from an initial float altitude of 40.8 km down to an altitude of 27.8 km. We will report on the initial event selection and reconstruction processes. Our objective is to characterize the MeV gamma-ray background near the top of the Earth's atmosphere originating from within a large celestial field-of-view. This will be done with and without Compton recoil electron tracking to quantify the improvements with tracking.
Bhattacharya Dipen
Harris James E.
Kamiya Kaoru
O'Neill Terrence J.
Trojanowski C.
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